Low sediment process for forming borated dispersant

Details Low sediment process for forming borated dispersant Low sediment process for forming borated dispersant

1993-11-22

1995-07-04

Jagannathan, Vasu S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525337, C08F25510, C08F 832

Patent

active

054301050

ABSTRACT:
A low sediment process for forming a borated, oil soluble, polymer-substituted, nitrogen- or ester-containing lubricating oil additive. A polymer-substituted, nitrogen- or ester-containing additive in the presence of a solvent therefor, is contacted under boronating reaction conditions in a reaction zone with particulate boric acid. The boric acid has a particle size distribution in lubricating oil characterized by a .phi. value of not greater than about 450. The .phi. value is the ratio of said particles' total spherical volume divided by said particles' total spherical external surface area; i.e., ##EQU1## wherein, for each of a plurality of distribution segments defining a particle size range; d.sub.i is the average particle diameter for the ith distribution segment; N.sub.i is the particle volume percent of the ith distribution segment; and the sum is taken over all the distribution segments.

REFERENCES:
patent: 3087436 (1960-12-01), Dettlof et al.
patent: 3087936 (1963-04-01), Le Suer
patent: 3172892 (1965-03-01), LeSuer et al.
patent: 3215707 (1965-11-01), Rense
patent: 3231587 (1966-01-01), Rense
patent: 3272746 (1966-09-01), LeSuer et al.
patent: 3275554 (1966-09-01), Wagenaar
patent: 3313727 (1967-04-01), Peeler
patent: 3361673 (1968-01-01), Stuart et al.
patent: 3381022 (1968-04-01), LeSuer
patent: 3401118 (1968-09-01), Benoit
patent: 3438757 (1969-04-01), Honnen et al.
patent: 3442808 (1969-05-01), Traise et al.
patent: 3445441 (1969-05-01), Rushton
patent: 3565804 (1971-02-01), Honnen et al.
patent: 3649229 (1972-03-01), Otto
patent: 3671478 (1972-06-01), Dyle et al.
patent: 3798165 (1974-03-01), Plasek et al.
patent: 3865763 (1975-02-01), Feniak
patent: 3912764 (1975-10-01), Palmer
patent: 3976624 (1976-08-01), Inouge et al.
patent: 4000353 (1976-12-01), Gardiner
patent: 4025445 (1977-05-01), Hellmuth et al.
patent: 4110349 (1978-08-01), Cohen
patent: 4234435 (1980-11-01), Meinhardt et al.
patent: 4419387 (1983-12-01), Campbell et al.
patent: 4578086 (1986-03-01), Puri et al.
patent: 4801404 (1989-01-01), Dietrich et al.
patent: 4820432 (1989-04-01), Lundberg et al.
patent: 4828742 (1989-05-01), Lundberg et al.
patent: 4834913 (1989-05-01), Aseltine et al.
patent: 4857217 (1989-08-01), Gutierrez et al.
patent: 5102566 (1992-04-01), Fetterman et al.
Brinkmann Particle Size Analyzer "A Visible Difference in Size and Shape Analysis" Brinkmann Instruments, Inc., 1988.
PSA 2010 Particle Size Analyzer, Operation Manual, Version 4.2 (Jul. 1989).
W. W. Yau, J. J. Kirkland and D. D. Bly (Book not provided, will provide a copy upon request) "Modern Size Exclusion Liquid Chromatography" John Wiley & Sons, New York (1979).

Affiliated with

Also associated with

Rating

Low sediment process for forming borated dispersant does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low sediment process for forming borated dispersant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low sediment process for forming borated dispersant will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-760804